Blender Git Loki

Fix layout changing when changing workspace

Move active screen layout into the active workspace

Changing the workspace now also changes the layout. Note that there is a drawing issue here so you'll have to move the window to see the change. There is also a crash when closing Blender, need to investigate some more.
This commit also cares for compatibility, we simply create a new workspace for each screen layout of the old file.

I want to avoid any low-level access of workspace related data, instead everything should go through an API. Thus I also added some API functions for workspaces.
To store bScreens (aka layout) using a ListBase in a workspace, I had to add a bScreen wrapper, called WorkSpaceLayout.

Add/use worksace API functions for adding/changing/deleting

Also removed anything that influences workspace user count, from now on it's simply *always* 1.

Add workspace to bContext

Add a workspace browsing button to Info Editor header

And actually make it work.

Store a workspace in each window

Some details need to be figured out still (Windows should probably be able to share an active workspace).

Initially add WorkSpace ID type